Home / 28,412.37-39,207.65-15,834.69

Finding the Fourth Proportional to 28,412.37, 39,207.65 and 15,834.69

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Solution

The fourth proportional to 28,412.37, 39,207.65 and 15,834.69 is: 21,851.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,412.37 : 39,207.65 = 15,834.69 : x
  2. Step 2: Convert to fraction form
    28,412.37/39,207.65 = 15,834.69/x
  3. Step 3: Cross multiply
    28,412.37x = 39,207.65 × 15,834.69
  4. Step 4: Simplify right side
    28,412.37x = 620,840,904.21
  5. Step 5: Solve for x
    x = 620,840,904.21/28,412.37
  6. Step 6: Final answer
    x = 21,851.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.